1. lacking a crest; having no crest or crown
Usage: commonly used in ornithology and heraldry
2. lacking distinction, prestige, or noble status
Usage: figurative or archaic usage

Examples

• The crestless bird blended seamlessly into the forest canopy.
• Many crestless species of eagles inhabit the tropical regions.
• In heraldry, a crestless shield indicated a family of lower rank.
• The crestless waves rolled gently toward the shore.
• She felt crestless and unremarkable among the celebrated scholars.
• The crestless helmet was simpler in design than its ornate counterpart.